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72 Commits

Author SHA1 Message Date
Daniel Dunbar
ca1212de59 MC/Mach-O: Fail faster/harder when we see .file, which isn't yet supported. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104031 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 17:28:17 +00:00
Daniel Dunbar
db9014dd8b MC/Mach-O: Reverse order of SymbolData scanning when emitting instructions. 
- This fixes a string table mismatch with 'as' when two new symbols are defined
   in a single instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103979 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-17 21:19:59 +00:00
Daniel Dunbar
b18d2dd115 MC/Mach-O: Fix some differences in symbol flag handling. 
- Don't clear weak reference flag, 'as' was only "trying" to do this, it wasn't
   actually succeeding.
 - Clear the "lazy bound" bit when we mark something external. This corresponds
   roughly to the lazy clearing of the bit that 'as' implements in
   symbol_table_lookup.
 - The exact meaning of these flags appears pretty loose, since 'as' isn't very
   consistent. For now we just try to match 'as', we will clean this up one day
   hopefully.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103964 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-17 20:12:31 +00:00
Eric Christopher
482eba054a Add AsmParser support for darwin tbss directive. 
Nothing uses this yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103757 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 01:50:28 +00:00
Daniel Dunbar
1c15413ebc MC: Move MCAlignFragment::EmitNops value out of the constructor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103665 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 22:56:23 +00:00
Daniel Dunbar
4e544870c4 MC: Eliminate MCZeroFillFragment, it is no longer needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103664 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 22:51:38 +00:00
Daniel Dunbar
e73d49eda2 MC: Drop support for alignment in ZeroFill fragment, we can just use 
MCAlignFragments for this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103661 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-12 22:51:27 +00:00
Daniel Dunbar
071f73db4a MC/Mach-O: Explicitly track atoms, as represented by their defining symbol, for each fragment (not yet used). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103438 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-10 22:45:09 +00:00
Chris Lattner
b54b9ddaaf break coff symbol definition stuff out into proper MCStreamer callbacks, 
patch by Nathan Jeffords!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103346 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-08 19:54:22 +00:00
Kevin Enderby
a6eeb6e226 Fix i386 relocations to Weak Definitions. The relocation entries should be 
external and the item to be relocated should not have the address of the
symbol added in.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103302 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-07 21:44:23 +00:00
Daniel Dunbar
2d7fd61e94 MC/Mach-O: Mark absolute variable's appropriately, and add Mach-O support for 
writing them.
 - <rdar://problem/7885351> integrated assembler broken for i386 objc code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103112 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-05 19:01:05 +00:00
Daniel Dunbar
c304718fd8 MC: Reject attempts to define a variable symbol. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103111 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-05 19:01:00 +00:00
Daniel Dunbar
08a408a4b3 MC: Rename MCSymbol::{g,s}etValue -> MCSymbol::{g,s}etVariableValue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103095 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-05 17:41:00 +00:00
Daniel Dunbar
ac2884a717 llvm-mc: Add a -mc-relax-all option, which relaxes every fixup. We always need 
exactly two passes in that case, and don't ever need to recompute any layout,
so this is a nice baseline for relaxation performance.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99563 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-25 22:49:09 +00:00
Daniel Dunbar
d8036fb0de MC: Switch to using MCInst fragments to do relaxation. 
Also, both MCMachOStreamer and MCAssembler are now target independent!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99256 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-23 05:09:03 +00:00
Daniel Dunbar
337055e62f MC: Add TargetAsmBackend::MayNeedRelaxation, for checking whether a particular instruction + fixups might need relaxation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99249 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-23 03:13:05 +00:00
Daniel Dunbar
8f9b80e5df MC: Add TargetAsmBackend::WriteNopData and use to eliminate some target dependencies in MCMachOStreamer and MCAssembler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99248 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-23 02:36:58 +00:00
Daniel Dunbar
3f4dcd92da MC: Add MCInstFragment, not used yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99229 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-22 23:16:48 +00:00
Daniel Dunbar
f70f477024 MC/Mach-O: Factor out getOrCreateDataFragment(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99204 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-22 20:35:46 +00:00
Daniel Dunbar
cf871e5abf MC: Sink code emitter into MCAssembler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98953 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-19 10:43:18 +00:00
Daniel Dunbar
d3da36286f MC: Fix a crash on invalid, attempting to evaluate undefined symbols. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98464 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-14 03:10:40 +00:00
Daniel Dunbar
8315a357e4 MC: Add MCAssembler::addFixup, which enforces that fixups are added in order. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98379 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-12 21:00:38 +00:00
Daniel Dunbar
1f3e445184 MC: Provide MCAssembler with a TargetAsmBackend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98222 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-11 01:34:27 +00:00
Daniel Dunbar
46836a783a MC: Move the backend section and symbol data maps to MCAssembler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98186 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 20:58:29 +00:00
Daniel Dunbar
0965200ac2 Remove unneeded includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98167 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 17:56:05 +00:00
Kevin Enderby
6e72048add This is the first patch to put the needed bits in place to eventually allow code 
to be aligned with optimal nops.  This patch does not change any functionality
and when the compiler is changed to use EmitCodeAlignment() it should also not
change the resulting output.  Once the compiler change is made and everything
looks good the next patch with the table of optimal X86 nops will be added to
WriteNopData() changing the output.  There are many FIXMEs in this patch which
will be removed when we have better target hooks (coming soon I hear).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96963 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-23 18:26:34 +00:00
Daniel Dunbar
40ebe2473a MC/Mach-O: Remove non-sensical comment, and add a missing AddValueSymbols call. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96809 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-22 22:08:57 +00:00
Daniel Dunbar
f6346769b3 MC/Mach-O: Start emitting fixups/relocations for instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96095 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-13 09:29:02 +00:00
Daniel Dunbar
2be2fd0730 MCAssembler: Switch MCAsmFixup to storing MCFixupKind instead of just a size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96094 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-13 09:28:54 +00:00
Daniel Dunbar
45f4874611 MC/Mach-O: Implement EmitValue using data fragments + fixups instead of fill fragment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96091 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-13 09:28:22 +00:00
Daniel Dunbar
73c557458c MC: First cut at MCFixup, for getting fixup/relocation information out of an MCCodeEmitter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95708 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 22:59:55 +00:00
Chris Lattner
5d917a8952 add scaffolding for target-specific MCExprs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95559 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 19:41:07 +00:00
Daniel Dunbar
e1ec617c6a MC/Mach-O: Set SOME_INSTRUCTIONS bit for sections. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95135 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 21:44:01 +00:00
Chris Lattner
718fb59801 mcstreamerize gprel32 emission. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94452 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 21:28:50 +00:00
Chris Lattner
a6594fc715 mcstreamerize .file and .file. This also fixes an issue where the 
normal form of .file would fail if the filename had a weird character
in it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94437 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 18:58:59 +00:00
Chris Lattner
ed0ab15170 add symbol attribute support for the ELF .type directive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94435 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 18:30:45 +00:00
Chris Lattner
99328add83 emit the .size directive for global variables on ELF through 
mcstreamer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94416 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 07:52:13 +00:00
Chris Lattner
9eb158d5b4 mcize lcomm, simplify .comm, extend both to support 64-bit sizes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94299 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 07:47:02 +00:00
Chris Lattner
a5ad93a10a move the various directive enums out of the MCStreamer class 
into a new MCDirectives.h file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94294 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 06:39:22 +00:00
Chris Lattner
3a9be0ee36 mcstreamerize .no_dead_strip and .reference for static ctors/dtors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94290 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 05:51:36 +00:00
Chris Lattner
aaec205b87 Generalize mcasmstreamer data emission APIs to take an address space 
identifier.  There is no way to work around it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93896 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 19:46:13 +00:00
Nate Begeman
6f24a0a603 Add a note for the macho streamer and remove a used of the mangler from the soon to be defunct machowriter pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93670 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-17 03:49:01 +00:00
Daniel Dunbar
2928c83b01 Pass StringRef by value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86251 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 10:58:06 +00:00
Daniel Dunbar
a4d8667c87 MC: Set symbol values in MachO MCStreamer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84236 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-16 01:58:23 +00:00
Daniel Dunbar
1253a6fa3b MC: Switch assembler API to using MCExpr instead of MCValue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84234 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-16 01:58:03 +00:00
Daniel Dunbar
e00b011e6a MC: Remove unneeded context argument to MCExpr::Evaluate*. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84233 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-16 01:57:52 +00:00
Daniel Dunbar
821e3334ed llvm-mc: Pass values to MCStreamer as MCExprs, not MCValues. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80578 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-31 08:09:28 +00:00
Daniel Dunbar
e2ace509fc llvm-mc: Simplify EmitAssignment ('.set' is identical to '='). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80577 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-31 08:09:09 +00:00
Daniel Dunbar
8c2eebe407 llvm-mc: Switch MCInst to storing an MCExpr* instead of an MCValue. 
Also, use MCInst::print instead of custom code in MCAsmPrinter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80575 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-31 08:08:38 +00:00
Daniel Dunbar
cb579b3338 llvm-mc: Make MCSymbolData symbol member const. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80573 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-31 08:08:06 +00:00